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The Guardian™ Case Study

Using the Guardian with deer — A four month case study

Summer 2015 — Courtesy of Biologist Todd Hobein

Local biologist Todd Hobein is a science teacher for the city of Ashland, Oregon. He performed thorough testing of the Guardian over several months, and recorded his findings in detail. This is an excellent testimonial to the importance of proper placement and installation.


I began planting my garden like I do every year at this time. This year, however, I had four-legged visitors I did not plan on. My neighbor had decided some weeks ago to build a fence around his backyard. As a result, the deer no longer were able to use his yard as their runway and decided to try mine instead. In the early part of June I saw my first deer. After a brief look around my garden I immediately noticed that something had clipped the tops off of my Anaheim peppers. No other damage was observed at that time. I decided then to look into pest deterrent options to protect my garden and purchased the Guardian.

June 15th

June 16th

  • Watched another deer walk through backyard straight for garden.
  • Deer was clearly irritated by the sound of the Guardian by cocking its head and ears to deflect sound (see Image 1).

Image 1: deer reacting to the Guardian.

July 1st

July 5th


July 15th

August and September


Image 2: deer invading the garden.

Conclusion

There were a few times when the deer did get the better of the unit, however, on each occasion this was due to factors that had nothing to do with the engineering of the unit. External factors like plant growth or plants outside the range of the sensor were the main causes of these trials and required simple adjustments for the Guardian to achieve its full potential.

The protection provided by the Guardian was more than sufficient and allowed me to have one of my best harvests yet from my garden.


Todd Hobein in his garden.

Todd Hobein, B.A.,
Wildlife Biology Science Teacher,
Ashland School District
Medford, OR